Allison Baden-Clay's body was found on the bank of Kholo Creek in west Brisbane.

Brisbane mother Allison Baden-Clay had a jumper wrapped around her head and neck when her body was found on a creek bank in 2012.

Forensic police officers have told the murder trial of her husband Gerard Baden-Clay the body was found on the bank of Kholo Creek at Anstead in west Brisbane on 20 April that year.

Sergeant Nicole Tysoe was present during an autopsy the following day and said Mrs Baden-Clay's clothes were normal except for one thing.

"When I first observed Allison she had on a pair of three-quarter length pants, some socks and shoes, a top, like a singlet top and also a jumper that was wrapped around her head/neck area," Tysoe told the Supreme Court in Brisbane.

She said forensic police found twigs and leaves in Mrs Baden-Clay's hair, on her arms and on her jumper. The material was sent to a botanist for examination.

The jury was also shown photos of two mud-stained rings found on Mrs Baden-Clay's ring finger – a plain wedding band and a diamond ring.

Another forensic officer said the muddy bank where the body was found – 14 metres below the Kholo bridge – was so difficult to access that a policeman fell and injured himself trying to get down.

Former real estate agent Gerard Baden-Clay has pleaded not guilty to murdering his wife in April 2012.